Prefer require_relative to require

`require_relative` is preferred over `require` for files within the same
project because it uses paths relative to the current file, making code
more portable and less dependent on the load path.

This change updates internal requires to use `require_relative` for
consistency, performance, and improved portability.

Additionally, remove a redundant requirement of `net/https`

Ref:
- rubocop/rubocop#8748
- ruby/ruby@594633f

Author: tagliala

.rubocop_todo.yml

@@ -5,6 +5,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/) and this
 project adheres to [Semantic Versioning](https://semver.org/)
 
+## 3.0.1 - 2025-02-28
+
+* Prefer `require_relative` over `require`
+* Remove redundant require of `net/https`
+
 ## 3.0.0 - 2024-02-24
 
 ### Changed

CHANGELOG.md

@@ -1,3 +1,3 @@
 # frozen_string_literal: true
 
-require 'omniauth/cas'
+require_relative 'omniauth/cas'

lib/omniauth-cas.rb

@@ -1,4 +1,4 @@
 # frozen_string_literal: true
 
-require 'omniauth/cas/version'
-require 'omniauth/strategies/cas'
+require_relative 'cas/version'
+require_relative 'strategies/cas'

lib/omniauth/cas.rb

@@ -2,6 +2,6 @@
 
 module OmniAuth
   module Cas
-    VERSION = '3.0.0'
+    VERSION = '3.0.1'
   end
 end

lib/omniauth/cas/version.rb

@@ -1,7 +1,6 @@
 # frozen_string_literal: true
 
 require 'net/http'
-require 'net/https'
 require 'nokogiri'
 
 module OmniAuth